78615/3MC

Overview

The Murata Power Solutions Inc. 78615/3MC is a general-purpose pulse transformer designed for signal coupling and pulse transfer in electronic circuits. It features a 1:1 turns ratio and an inductance of 200µH. The component has a voltage-time product (ET) of 28 Vµs and a DC resistance of 240mΩ. It supports an isolation voltage of 1000Vrms and operates within a temperature range of 0°C to +70°C. The device utilizes a gull-wing surface mount package with dimensions of 9.52mm length, 9.00mm width, and a maximum height of 6.35mm.

Feature Summary

• Provides galvanic isolation for signal coupling and pulse transfer applications
• Features a standard 1:1 turns ratio for balanced signal transmission
• Utilizes a gull-wing surface mount package for automated PCB assembly

Applications

• Signal coupling in electronic circuits
• Pulse transfer in digital communication interfaces
• General-purpose isolation in power supply control loops

Procurement Notes

Verify the specific suffix configuration when ordering, as variants such as 78615/3MC-R indicate reel packaging while others may use cut tape or tube formats. Confirm that the required ET rating of 28 Vµs aligns with the circuit's duty cycle requirements. Ensure the gull-wing footprint matches the target PCB layout design before finalizing procurement specifications.

Selection Notes

Select this component when a 1:1 isolation ratio and 200µH inductance are required for low-frequency pulse applications. The 1000Vrms isolation rating suits designs needing moderate barrier protection. Consider the 240mΩ DC resistance for efficiency calculations in the primary winding path. Verify thermal performance within the specified 0°C to +70°C operating range for the intended environment.

Part Context

This part belongs to the Murata 786 series of general-purpose pulse transformers. The series offers various configurations including different turns ratios and inductance values. Components in this family share similar physical footprints but differ in electrical characteristics such as ET ratings and winding configurations to suit diverse signal processing needs.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific model were not identified in the provided documentation.